Question

if a speed of a boat is 20 km per hour if travelled for 5 hours .how much distance he travelled​

Answer 1

Answer:

Let the speed of stream be x km/hr.

⇒ Speed of boat in still water = 20 km/hr

⇒ Speed of boat in upstream = 20/4 = 5 km/hr

Also, speed of boat in upstream = speed of boat in still water - speed of stream

⇒ 5 = 20 - x

∴ The speed of stream is 15 km/hr.

Step-by-step explanation:

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Answer 2

Given-

Speed of boat= 20 kmph

Time period = 5 hours

To Find-

Distance Travelled

Solution-

$speed = \frac{distance}{time}$

$\implies \: distance = speed \times time$

Putting Values-

Distance= 20 × 5 =100km

$\large{\sf{\underline{\boxed{\red{distance \: travelled = 100 \: km}}}}}$